Adafruit_INA219.h File Reference

#include "Arduino.h"
#include <Adafruit_BusIO_Register.h>
#include <Adafruit_I2CDevice.h>
#include <Wire.h>

Go to the source code of this file.

Classes
class	Adafruit_INA219
	Class that stores state and functions for interacting with INA219 current/power monitor IC. More...

Macros
#define	INA219_CALC_ADDRESS(INA_ADDR0, INA_ADDR1)   (0x40 | (INA_ADDR0 != 0 ? 0x01 : 0x00) | (INA_ADDR1 != 0 ? 0x04 : 0x00))
#define	INA219_ADDRESS   (0x40)
#define	INA219_READ   (0x01)
#define	INA219_REG_CONFIG   (0x00)
#define	INA219_CONFIG_RESET   (0x8000)
#define	INA219_CONFIG_BVOLTAGERANGE_MASK   (0x2000)
#define	INA219_CONFIG_GAIN_MASK   (0x1800)
#define	INA219_CONFIG_BADCRES_MASK   (0x0780)
#define	INA219_CONFIG_SADCRES_MASK   (0x0078)
#define	INA219_CONFIG_MODE_MASK   (0x0007)
#define	INA219_REG_SHUNTVOLTAGE   (0x01)
#define	INA219_REG_BUSVOLTAGE   (0x02)
#define	INA219_REG_POWER   (0x03)
#define	INA219_REG_CURRENT   (0x04)
#define	INA219_REG_CALIBRATION   (0x05)

Enumerations
enum	{ INA219_CONFIG_BVOLTAGERANGE_16V = (0x0000), INA219_CONFIG_BVOLTAGERANGE_32V = (0x2000) }
enum	{ INA219_CONFIG_GAIN_1_40MV = (0x0000), INA219_CONFIG_GAIN_2_80MV = (0x0800), INA219_CONFIG_GAIN_4_160MV = (0x1000), INA219_CONFIG_GAIN_8_320MV = (0x1800) }
enum	{   INA219_CONFIG_BADCRES_9BIT = (0x0000), INA219_CONFIG_BADCRES_10BIT = (0x0080), INA219_CONFIG_BADCRES_11BIT = (0x0100), INA219_CONFIG_BADCRES_12BIT = (0x0180),   INA219_CONFIG_BADCRES_12BIT_2S_1060US, INA219_CONFIG_BADCRES_12BIT_4S_2130US, INA219_CONFIG_BADCRES_12BIT_8S_4260US, INA219_CONFIG_BADCRES_12BIT_16S_8510US,   INA219_CONFIG_BADCRES_12BIT_32S_17MS, INA219_CONFIG_BADCRES_12BIT_64S_34MS, INA219_CONFIG_BADCRES_12BIT_128S_69MS }
enum	{   INA219_CONFIG_SADCRES_9BIT_1S_84US = (0x0000), INA219_CONFIG_SADCRES_10BIT_1S_148US = (0x0008), INA219_CONFIG_SADCRES_11BIT_1S_276US = (0x0010), INA219_CONFIG_SADCRES_12BIT_1S_532US = (0x0018),   INA219_CONFIG_SADCRES_12BIT_2S_1060US, INA219_CONFIG_SADCRES_12BIT_4S_2130US, INA219_CONFIG_SADCRES_12BIT_8S_4260US, INA219_CONFIG_SADCRES_12BIT_16S_8510US,   INA219_CONFIG_SADCRES_12BIT_32S_17MS, INA219_CONFIG_SADCRES_12BIT_64S_34MS, INA219_CONFIG_SADCRES_12BIT_128S_69MS }
enum	{   INA219_CONFIG_MODE_POWERDOWN = 0x00, INA219_CONFIG_MODE_SVOLT_TRIGGERED = 0x01, INA219_CONFIG_MODE_BVOLT_TRIGGERED = 0x02, INA219_CONFIG_MODE_SANDBVOLT_TRIGGERED,   INA219_CONFIG_MODE_ADCOFF = 0x04, INA219_CONFIG_MODE_SVOLT_CONTINUOUS = 0x05, INA219_CONFIG_MODE_BVOLT_CONTINUOUS = 0x06, INA219_CONFIG_MODE_SANDBVOLT_CONTINUOUS }

Detailed Description

This is a library for the Adafruit INA219 breakout board -—> https://www.adafruit.com/product/904

Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!

Written by Bryan Siepert and Kevin "KTOWN" Townsend for Adafruit Industries.

BSD license, all text here must be included in any redistribution.

Macro Definition Documentation

INA219_CALC_ADDRESS

#define INA219_CALC_ADDRESS	(		INA_ADDR0,
			INA_ADDR1
	)		(0x40 | (INA_ADDR0 != 0 ? 0x01 : 0x00) | (INA_ADDR1 != 0 ? 0x04 : 0x00))

calculated I2C address: 0 = GND, 1 = V+

INA219_ADDRESS

#define INA219_ADDRESS   (0x40)

default I2C address

INA219_READ

#define INA219_READ   (0x01)

read

INA219_REG_CONFIG

#define INA219_REG_CONFIG   (0x00)

config register address

INA219_CONFIG_RESET

#define INA219_CONFIG_RESET   (0x8000)

reset bit

INA219_CONFIG_BVOLTAGERANGE_MASK

#define INA219_CONFIG_BVOLTAGERANGE_MASK   (0x2000)

mask for bus voltage range

INA219_CONFIG_GAIN_MASK

#define INA219_CONFIG_GAIN_MASK   (0x1800)

mask for gain bits

INA219_CONFIG_BADCRES_MASK

#define INA219_CONFIG_BADCRES_MASK   (0x0780)

mask for bus ADC resolution bits

INA219_CONFIG_SADCRES_MASK

#define INA219_CONFIG_SADCRES_MASK   (0x0078)

mask for shunt ADC resolution bits

INA219_CONFIG_MODE_MASK

#define INA219_CONFIG_MODE_MASK   (0x0007)

mask for operating mode bits

INA219_REG_SHUNTVOLTAGE

#define INA219_REG_SHUNTVOLTAGE   (0x01)

shunt voltage register

INA219_REG_BUSVOLTAGE

#define INA219_REG_BUSVOLTAGE   (0x02)

bus voltage register

INA219_REG_POWER

#define INA219_REG_POWER   (0x03)

power register

INA219_REG_CURRENT

#define INA219_REG_CURRENT   (0x04)

current register

INA219_REG_CALIBRATION

#define INA219_REG_CALIBRATION   (0x05)

calibration register

Enumeration Type Documentation

anonymous enum

anonymous enum

bus voltage range values

anonymous enum

anonymous enum

values for gain bits

anonymous enum

anonymous enum

values for bus ADC resolution

anonymous enum

anonymous enum

values for shunt ADC resolution

anonymous enum

anonymous enum

values for operating mode

Enumerator
INA219_CONFIG_MODE_POWERDOWN	power down
INA219_CONFIG_MODE_SVOLT_TRIGGERED	shunt voltage triggered
INA219_CONFIG_MODE_BVOLT_TRIGGERED	bus voltage triggered
INA219_CONFIG_MODE_SANDBVOLT_TRIGGERED	shunt and bus voltage triggered
INA219_CONFIG_MODE_ADCOFF	ADC off
INA219_CONFIG_MODE_SVOLT_CONTINUOUS	shunt voltage continuous
INA219_CONFIG_MODE_BVOLT_CONTINUOUS	bus voltage continuous
INA219_CONFIG_MODE_SANDBVOLT_CONTINUOUS	shunt and bus voltage continuous